27-arrays

Lesson 27: Arrays

Ordered, zero-indexed lists.

What you'll learn

• create with [] or Array.of(...)
• access by index arr[0]; .length gives size
• add/remove at end: push / pop; at start: unshift / shift
• arrays are objects — Array.isArray(x) to test

Example

See examples/.

Exercise

Build a stack (push/pop) and a queue (push/shift).